|
1
|
|
|
# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
|
2
|
|
|
# contributor license agreements. See the NOTICE file distributed with |
|
3
|
|
|
# this work for additional information regarding copyright ownership. |
|
4
|
|
|
# The ASF licenses this file to You under the Apache License, Version 2.0 |
|
5
|
|
|
# (the "License"); you may not use this file except in compliance with |
|
6
|
|
|
# the License. You may obtain a copy of the License at |
|
7
|
|
|
# |
|
8
|
|
|
# http://www.apache.org/licenses/LICENSE-2.0 |
|
9
|
|
|
# |
|
10
|
|
|
# Unless required by applicable law or agreed to in writing, software |
|
11
|
|
|
# distributed under the License is distributed on an "AS IS" BASIS, |
|
12
|
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
13
|
|
|
# See the License for the specific language governing permissions and |
|
14
|
|
|
# limitations under the License. |
|
15
|
|
|
|
|
16
|
|
|
import os |
|
17
|
|
|
|
|
18
|
|
|
from st2common import log as logging |
|
19
|
|
|
from st2common.content.loader import MetaLoader |
|
20
|
|
|
from st2common.models.db.rule import RuleDB |
|
21
|
|
|
from st2common.models.db.trigger import TriggerDB |
|
22
|
|
|
from st2common.models.db.trigger import TriggerInstanceDB |
|
23
|
|
|
from st2common.models.system.common import ResourceReference |
|
24
|
|
|
from st2common.persistence.reactor import Rule, TriggerInstance, Trigger |
|
25
|
|
|
|
|
26
|
|
|
from st2reactor.rules.matcher import RulesMatcher |
|
27
|
|
|
|
|
28
|
|
|
__all__ = [ |
|
29
|
|
|
'RuleTester' |
|
30
|
|
|
] |
|
31
|
|
|
|
|
32
|
|
|
LOG = logging.getLogger(__name__) |
|
33
|
|
|
|
|
34
|
|
|
|
|
35
|
|
|
class RuleTester(object): |
|
36
|
|
|
def __init__(self, rule_file_path=None, rule_ref=None, trigger_instance_file_path=None, |
|
37
|
|
|
trigger_instance_id=None): |
|
38
|
|
|
""" |
|
39
|
|
|
:param rule_file_path: Path to the file containing rule definition. |
|
40
|
|
|
:type rule_file_path: ``str`` |
|
41
|
|
|
|
|
42
|
|
|
:param trigger_instance_file_path: Path to the file containg trigger instance definition. |
|
43
|
|
|
:type trigger_instance_file_path: ``str`` |
|
44
|
|
|
""" |
|
45
|
|
|
self._rule_file_path = rule_file_path |
|
46
|
|
|
self._rule_ref = rule_ref |
|
47
|
|
|
self._trigger_instance_file_path = trigger_instance_file_path |
|
48
|
|
|
self._trigger_instance_id = trigger_instance_id |
|
49
|
|
|
self._meta_loader = MetaLoader() |
|
50
|
|
|
|
|
51
|
|
|
def evaluate(self): |
|
52
|
|
|
""" |
|
53
|
|
|
Evaluate trigger instance against the rule. |
|
54
|
|
|
|
|
55
|
|
|
:return: ``True`` if the rule matches, ``False`` otherwise. |
|
56
|
|
|
:rtype: ``boolean`` |
|
57
|
|
|
""" |
|
58
|
|
|
|
|
59
|
|
|
rule_db = self._get_rule_db() |
|
60
|
|
|
trigger_instance_db, trigger_db = self._get_trigger_instance_db() |
|
61
|
|
|
|
|
62
|
|
|
# The trigger check needs to be performed here as that is not performed |
|
63
|
|
|
# by RulesMatcher. |
|
64
|
|
|
if rule_db.trigger != trigger_db.ref: |
|
65
|
|
|
LOG.info('rule.trigger "%s" and trigger.ref "%s" do not match.', |
|
66
|
|
|
rule_db.trigger, trigger_db.ref) |
|
67
|
|
|
return False |
|
68
|
|
|
|
|
69
|
|
|
matcher = RulesMatcher(trigger_instance=trigger_instance_db, trigger=trigger_db, |
|
70
|
|
|
rules=[rule_db], extra_info=True) |
|
71
|
|
|
matching_rules = matcher.get_matching_rules() |
|
72
|
|
|
|
|
73
|
|
|
return len(matching_rules) >= 1 |
|
74
|
|
|
|
|
75
|
|
|
def _get_rule_db(self): |
|
76
|
|
|
if self._rule_file_path: |
|
77
|
|
|
return self._get_rule_db_from_file( |
|
78
|
|
|
file_path=os.path.realpath(self._rule_file_path)) |
|
79
|
|
|
elif self._rule_ref: |
|
80
|
|
|
return Rule.get_by_ref(self._rule_ref) |
|
81
|
|
|
raise ValueError('One of _rule_file_path or _rule_ref should be specified.') |
|
82
|
|
|
|
|
83
|
|
|
def _get_trigger_instance_db(self): |
|
84
|
|
|
if self._trigger_instance_file_path: |
|
85
|
|
|
return self._get_trigger_instance_db_from_file( |
|
86
|
|
|
file_path=os.path.realpath(self._trigger_instance_file_path)) |
|
87
|
|
|
elif self._trigger_instance_id: |
|
88
|
|
|
trigger_instance_db = TriggerInstance.get_by_id(self._trigger_instance_id) |
|
89
|
|
|
trigger_db = Trigger.get_by_ref(trigger_instance_db.trigger) |
|
90
|
|
|
return trigger_instance_db, trigger_db |
|
91
|
|
|
raise ValueError('One of _trigger_instance_file_path or' |
|
92
|
|
|
'_trigger_instance_id should be specified.') |
|
93
|
|
|
|
|
94
|
|
|
def _get_rule_db_from_file(self, file_path): |
|
95
|
|
|
data = self._meta_loader.load(file_path=file_path) |
|
96
|
|
|
pack = data.get('pack', 'unknown') |
|
97
|
|
|
name = data.get('name', 'unknown') |
|
98
|
|
|
trigger = data['trigger']['type'] |
|
99
|
|
|
criteria = data.get('criteria', None) |
|
100
|
|
|
|
|
101
|
|
|
rule_db = RuleDB(pack=pack, name=name, trigger=trigger, criteria=criteria, action={}, |
|
102
|
|
|
enabled=True) |
|
103
|
|
|
return rule_db |
|
104
|
|
|
|
|
105
|
|
|
def _get_trigger_instance_db_from_file(self, file_path): |
|
106
|
|
|
data = self._meta_loader.load(file_path=file_path) |
|
107
|
|
|
instance = TriggerInstanceDB(**data) |
|
108
|
|
|
|
|
109
|
|
|
trigger_ref = ResourceReference.from_string_reference(instance['trigger']) |
|
110
|
|
|
trigger_db = TriggerDB(pack=trigger_ref.pack, name=trigger_ref.name, type=trigger_ref.ref) |
|
111
|
|
|
return instance, trigger_db |
|
112
|
|
|
|
StackStorm /
st2
